From 7595afa4d30097c1177b69257118d8ad89a539be Mon Sep 17 00:00:00 2001 From: Christian Ehrhardt Date: Tue, 16 May 2017 14:51:32 +0200 Subject: Imported Upstream version 17.05 Change-Id: Id1e419c5a214e4a18739663b91f0f9a549f1fdc6 Signed-off-by: Christian Ehrhardt --- drivers/crypto/dpaa2_sec/hw/rta/move_cmd.h | 445 +++++++++++++++++++++++++++++ 1 file changed, 445 insertions(+) create mode 100644 drivers/crypto/dpaa2_sec/hw/rta/move_cmd.h (limited to 'drivers/crypto/dpaa2_sec/hw/rta/move_cmd.h') diff --git a/drivers/crypto/dpaa2_sec/hw/rta/move_cmd.h b/drivers/crypto/dpaa2_sec/hw/rta/move_cmd.h new file mode 100644 index 00000000..10d2e193 --- /dev/null +++ b/drivers/crypto/dpaa2_sec/hw/rta/move_cmd.h @@ -0,0 +1,445 @@ +/*- + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * BSD LICENSE + * + * Copyright 2008-2016 Freescale Semiconductor Inc. + * Copyright (c) 2016 NXP. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * GPL LICENSE SUMMARY + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __RTA_MOVE_CMD_H__ +#define __RTA_MOVE_CMD_H__ + +#define MOVE_SET_AUX_SRC 0x01 +#define MOVE_SET_AUX_DST 0x02 +#define MOVE_SET_AUX_LS 0x03 +#define MOVE_SET_LEN_16b 0x04 + +#define MOVE_SET_AUX_MATH 0x10 +#define MOVE_SET_AUX_MATH_SRC (MOVE_SET_AUX_SRC | MOVE_SET_AUX_MATH) +#define MOVE_SET_AUX_MATH_DST (MOVE_SET_AUX_DST | MOVE_SET_AUX_MATH) + +#define MASK_16b 0xFF + +/* MOVE command type */ +#define __MOVE 1 +#define __MOVEB 2 +#define __MOVEDW 3 + +extern enum rta_sec_era rta_sec_era; + +static const uint32_t move_src_table[][2] = { +/*1*/ { CONTEXT1, MOVE_SRC_CLASS1CTX }, + { CONTEXT2, MOVE_SRC_CLASS2CTX }, + { OFIFO, MOVE_SRC_OUTFIFO }, + { DESCBUF, MOVE_SRC_DESCBUF }, + { MATH0, MOVE_SRC_MATH0 }, + { MATH1, MOVE_SRC_MATH1 }, + { MATH2, MOVE_SRC_MATH2 }, + { MATH3, MOVE_SRC_MATH3 }, +/*9*/ { IFIFOABD, MOVE_SRC_INFIFO }, + { IFIFOAB1, MOVE_SRC_INFIFO_CL | MOVE_AUX_LS }, + { IFIFOAB2, MOVE_SRC_INFIFO_CL }, +/*12*/ { ABD, MOVE_SRC_INFIFO_NO_NFIFO }, + { AB1, MOVE_SRC_INFIFO_NO_NFIFO | MOVE_AUX_LS }, + { AB2, MOVE_SRC_INFIFO_NO_NFIFO | MOVE_AUX_MS } +}; + +/* Allowed MOVE / MOVE_LEN sources for each SEC Era. + * Values represent the number of entries from move_src_table[] that are + * supported. + */ +static const unsigned int move_src_table_sz[] = {9, 11, 14, 14, 14, 14, 14, 14}; + +static const uint32_t move_dst_table[][2] = { +/*1*/ { CONTEXT1, MOVE_DEST_CLASS1CTX }, + { CONTEXT2, MOVE_DEST_CLASS2CTX }, + { OFIFO, MOVE_DEST_OUTFIFO }, + { DESCBUF, MOVE_DEST_DESCBUF }, + { MATH0, MOVE_DEST_MATH0 }, + { MATH1, MOVE_DEST_MATH1 }, + { MATH2, MOVE_DEST_MATH2 }, + { MATH3, MOVE_DEST_MATH3 }, + { IFIFOAB1, MOVE_DEST_CLASS1INFIFO }, + { IFIFOAB2, MOVE_DEST_CLASS2INFIFO }, + { PKA, MOVE_DEST_PK_A }, + { KEY1, MOVE_DEST_CLASS1KEY }, + { KEY2, MOVE_DEST_CLASS2KEY }, +/*14*/ { IFIFO, MOVE_DEST_INFIFO }, +/*15*/ { ALTSOURCE, MOVE_DEST_ALTSOURCE} +}; + +/* Allowed MOVE / MOVE_LEN destinations for each SEC Era. + * Values represent the number of entries from move_dst_table[] that are + * supported. + */ +static const +unsigned int move_dst_table_sz[] = {13, 14, 14, 15, 15, 15, 15, 15}; + +static inline int +set_move_offset(struct program *program __maybe_unused, + uint64_t src, uint16_t src_offset, + uint64_t dst, uint16_t dst_offset, + uint16_t *offset, uint16_t *opt); + +static inline int +math_offset(uint16_t offset); + +static inline int +rta_move(struct program *program, int cmd_type, uint64_t src, + uint16_t src_offset, uint64_t dst, + uint16_t dst_offset, uint32_t length, uint32_t flags) +{ + uint32_t opcode = 0; + uint16_t offset = 0, opt = 0; + uint32_t val = 0; + int ret = -EINVAL; + bool is_move_len_cmd = false; + unsigned int start_pc = program->current_pc; + + if ((rta_sec_era < RTA_SEC_ERA_7) && (cmd_type != __MOVE)) { + pr_err("MOVE: MOVEB / MOVEDW not supported by SEC Era %d. SEC PC: %d; Instr: %d\n", + USER_SEC_ERA(rta_sec_era), program->current_pc, + program->current_instruction); + goto err; + } + + /* write command type */ + if (cmd_type == __MOVEB) { + opcode = CMD_MOVEB; + } else if (cmd_type == __MOVEDW) { + opcode = CMD_MOVEDW; + } else if (!(flags & IMMED)) { + if (rta_sec_era < RTA_SEC_ERA_3) { + pr_err("MOVE: MOVE_LEN not supported by SEC Era %d. SEC PC: %d; Instr: %d\n", + USER_SEC_ERA(rta_sec_era), program->current_pc, + program->current_instruction); + goto err; + } + + if ((length != MATH0) && (length != MATH1) && + (length != MATH2) && (length != MATH3)) { + pr_err("MOVE: MOVE_LEN length must be MATH[0-3]. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } + + opcode = CMD_MOVE_LEN; + is_move_len_cmd = true; + } else { + opcode = CMD_MOVE; + } + + /* write offset first, to check for invalid combinations or incorrect + * offset values sooner; decide which offset should be here + * (src or dst) + */ + ret = set_move_offset(program, src, src_offset, dst, dst_offset, + &offset, &opt); + if (ret < 0) + goto err; + + opcode |= (offset << MOVE_OFFSET_SHIFT) & MOVE_OFFSET_MASK; + + /* set AUX field if required */ + if (opt == MOVE_SET_AUX_SRC) { + opcode |= ((src_offset / 16) << MOVE_AUX_SHIFT) & MOVE_AUX_MASK; + } else if (opt == MOVE_SET_AUX_DST) { + opcode |= ((dst_offset / 16) << MOVE_AUX_SHIFT) & MOVE_AUX_MASK; + } else if (opt == MOVE_SET_AUX_LS) { + opcode |= MOVE_AUX_LS; + } else if (opt & MOVE_SET_AUX_MATH) { + if (opt & MOVE_SET_AUX_SRC) + offset = src_offset; + else + offset = dst_offset; + + if (rta_sec_era < RTA_SEC_ERA_6) { + if (offset) + pr_debug("MOVE: Offset not supported by SEC Era %d. SEC PC: %d; Instr: %d\n", + USER_SEC_ERA(rta_sec_era), + program->current_pc, + program->current_instruction); + /* nothing to do for offset = 0 */ + } else { + ret = math_offset(offset); + if (ret < 0) { + pr_err("MOVE: Invalid offset in MATH register. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } + + opcode |= (uint32_t)ret; + } + } + + /* write source field */ + ret = __rta_map_opcode((uint32_t)src, move_src_table, + move_src_table_sz[rta_sec_era], &val); + if (ret < 0) { + pr_err("MOVE: Invalid SRC. SEC PC: %d; Instr: %d\n", + program->current_pc, program->current_instruction); + goto err; + } + opcode |= val; + + /* write destination field */ + ret = __rta_map_opcode((uint32_t)dst, move_dst_table, + move_dst_table_sz[rta_sec_era], &val); + if (ret < 0) { + pr_err("MOVE: Invalid DST. SEC PC: %d; Instr: %d\n", + program->current_pc, program->current_instruction); + goto err; + } + opcode |= val; + + /* write flags */ + if (flags & (FLUSH1 | FLUSH2)) + opcode |= MOVE_AUX_MS; + if (flags & (LAST2 | LAST1)) + opcode |= MOVE_AUX_LS; + if (flags & WAITCOMP) + opcode |= MOVE_WAITCOMP; + + if (!is_move_len_cmd) { + /* write length */ + if (opt == MOVE_SET_LEN_16b) + opcode |= (length & (MOVE_OFFSET_MASK | MOVE_LEN_MASK)); + else + opcode |= (length & MOVE_LEN_MASK); + } else { + /* write mrsel */ + switch (length) { + case (MATH0): + /* + * opcode |= MOVELEN_MRSEL_MATH0; + * MOVELEN_MRSEL_MATH0 is 0 + */ + break; + case (MATH1): + opcode |= MOVELEN_MRSEL_MATH1; + break; + case (MATH2): + opcode |= MOVELEN_MRSEL_MATH2; + break; + case (MATH3): + opcode |= MOVELEN_MRSEL_MATH3; + break; + } + + /* write size */ + if (rta_sec_era >= RTA_SEC_ERA_7) { + if (flags & SIZE_WORD) + opcode |= MOVELEN_SIZE_WORD; + else if (flags & SIZE_BYTE) + opcode |= MOVELEN_SIZE_BYTE; + else if (flags & SIZE_DWORD) + opcode |= MOVELEN_SIZE_DWORD; + } + } + + __rta_out32(program, opcode); + program->current_instruction++; + + return (int)start_pc; + + err: + program->first_error_pc = start_pc; + program->current_instruction++; + return ret; +} + +static inline int +set_move_offset(struct program *program __maybe_unused, + uint64_t src, uint16_t src_offset, + uint64_t dst, uint16_t dst_offset, + uint16_t *offset, uint16_t *opt) +{ + switch (src) { + case (CONTEXT1): + case (CONTEXT2): + if (dst == DESCBUF) { + *opt = MOVE_SET_AUX_SRC; + *offset = dst_offset; + } else if ((dst == KEY1) || (dst == KEY2)) { + if ((src_offset) && (dst_offset)) { + pr_err("MOVE: Bad offset. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } + if (dst_offset) { + *opt = MOVE_SET_AUX_LS; + *offset = dst_offset; + } else { + *offset = src_offset; + } + } else { + if ((dst == MATH0) || (dst == MATH1) || + (dst == MATH2) || (dst == MATH3)) { + *opt = MOVE_SET_AUX_MATH_DST; + } else if (((dst == OFIFO) || (dst == ALTSOURCE)) && + (src_offset % 4)) { + pr_err("MOVE: Bad offset alignment. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } + + *offset = src_offset; + } + break; + + case (OFIFO): + if (dst == OFIFO) { + pr_err("MOVE: Invalid DST. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } + if (((dst == IFIFOAB1) || (dst == IFIFOAB2) || + (dst == IFIFO) || (dst == PKA)) && + (src_offset || dst_offset)) { + pr_err("MOVE: Offset should be zero. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } + *offset = dst_offset; + break; + + case (DESCBUF): + if ((dst == CONTEXT1) || (dst == CONTEXT2)) { + *opt = MOVE_SET_AUX_DST; + } else if ((dst == MATH0) || (dst == MATH1) || + (dst == MATH2) || (dst == MATH3)) { + *opt = MOVE_SET_AUX_MATH_DST; + } else if (dst == DESCBUF) { + pr_err("MOVE: Invalid DST. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } else if (((dst == OFIFO) || (dst == ALTSOURCE)) && + (src_offset % 4)) { + pr_err("MOVE: Invalid offset alignment. SEC PC: %d; Instr %d\n", + program->current_pc, + program->current_instruction); + goto err; + } + + *offset = src_offset; + break; + + case (MATH0): + case (MATH1): + case (MATH2): + case (MATH3): + if ((dst == OFIFO) || (dst == ALTSOURCE)) { + if (src_offset % 4) { + pr_err("MOVE: Bad offset alignment. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } + *offset = src_offset; + } else if ((dst == IFIFOAB1) || (dst == IFIFOAB2) || + (dst == IFIFO) || (dst == PKA)) { + *offset = src_offset; + } else { + *offset = dst_offset; + + /* + * This condition is basically the negation of: + * dst in { CONTEXT[1-2], MATH[0-3] } + */ + if ((dst != KEY1) && (dst != KEY2)) + *opt = MOVE_SET_AUX_MATH_SRC; + } + break; + + case (IFIFOABD): + case (IFIFOAB1): + case (IFIFOAB2): + case (ABD): + case (AB1): + case (AB2): + if ((dst == IFIFOAB1) || (dst == IFIFOAB2) || + (dst == IFIFO) || (dst == PKA) || (dst == ALTSOURCE)) { + pr_err("MOVE: Bad DST. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } else { + if (dst == OFIFO) { + *opt = MOVE_SET_LEN_16b; + } else { + if (dst_offset % 4) { + pr_err("MOVE: Bad offset alignment. SEC PC: %d; Instr: %d\n", + program->current_pc, + program->current_instruction); + goto err; + } + *offset = dst_offset; + } + } + break; + default: + break; + } + + return 0; + err: + return -EINVAL; +} + +static inline int +math_offset(uint16_t offset) +{ + switch (offset) { + case 0: + return 0; + case 4: + return MOVE_AUX_LS; + case 6: + return MOVE_AUX_MS; + case 7: + return MOVE_AUX_LS | MOVE_AUX_MS; + } + + return -EINVAL; +} + +#endif /* __RTA_MOVE_CMD_H__ */ -- cgit 1.2.3-korg